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Paper: The Challenges of Abundance Analysis for Long–Period Variables
Volume: 497, Why Galaxies Care about AGB Stars III: A Closer Look in Space and Time
Page: 283
Authors: Lebzelter, T.; Nowotny, W.; Hinkle, K. H.; Höfner, S.; Aringer, B.; Heiter, U.
Abstract: The measurement of elemental abundances of Asymptotic Giant Branch (AGB) stars is a highly challenging task that so far has not been solved in a satisfactory way. We report here on our efforts to confront predictions from hydrostatic and dynamical model atmospheres with observational results based on high-resolution spectra of variable and non-variable giants in the globular cluster 47 Tuc. Our goal is to estimate the impact of atmospheric dynamics on the abundance determination.
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